Di Posting Oleh : Simple Learning
Kategori : BGP Core Technologies Routing
Prerequisites: CCNP level skills.
Topology
Configure R3 to use BGP dampening according to the following:
- Penalty should be reduced by half after 10 minutes (default=15).
- The dampened route must be reused when it reaches value of 700. (default=750).
- Route should not be used when it reaches 2000 points (default=2000).
- The routes that experience flaps should not be suppressed for more than 40. minutes (default=4 x half-time).
Task 1
Configure R3 to use BGP dampening according to the following:
- Penalty should be reduced by half after 10 minutes (default=15).
- The dampened route must be reused when it reaches value of 700. (default=750).
- Route should not be used when it reaches 2000 points (default=2000).
- The routes that experience flaps should not be suppressed for more than 40. minutes (default=4 x half-time).
!
router bgp 123
no synchronization
bgp router-id 172.16.103.3
bgp log-neighbor-changes
bgp dampening 10 700 2000 40
network 172.16.103.0 mask 255.255.255.0
neighbor 10.1.13.1 remote-as 123
neighbor 10.1.13.1 route-reflector-client
neighbor 10.1.13.1 next-hop-self
neighbor 10.1.23.2 remote-as 123
neighbor 10.1.23.2 route-reflector-client
neighbor 10.1.23.2 next-hop-self
neighbor 10.1.35.5 remote-as 50
no auto-summary
no synchronization
bgp router-id 172.16.103.3
bgp log-neighbor-changes
bgp dampening 10 700 2000 40
network 172.16.103.0 mask 255.255.255.0
neighbor 10.1.13.1 remote-as 123
neighbor 10.1.13.1 route-reflector-client
neighbor 10.1.13.1 next-hop-self
neighbor 10.1.23.2 remote-as 123
neighbor 10.1.23.2 route-reflector-client
neighbor 10.1.23.2 next-hop-self
neighbor 10.1.35.5 remote-as 50
no auto-summary
!
Verification:
Pic. 2 - BGP Dampening Parameters.
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